Query Monitor <= 3.20.3 - Reflected Cross-Site Scripting via Request URI_CVE-2026-4267

{
    "lastseen": "",
    "description": "The Query Monitor \u2013 The developer tools panel for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the \u2018$_SERVER['REQUEST_URI']\u2019 parameter in all versions up to, and including, 3.20.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.",
    "published": "2026-03-31T11:29:49.029Z",
    "modified": "2026-04-08T16:34:51.846Z",
    "type": "cve",
    "title": "Query Monitor <= 3.20.3 - Reflected Cross-Site Scripting via Request URI",
    "source": "Wordfence",
    "references": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0b75cad9-9f76-4839-8eb2-40d84662846d?source=cve\nhttps://plugins.trac.wordpress.org/browser/query-monitor/tags/3.20.2/output/html/request.php#L60\nhttps://plugins.trac.wordpress.org/browser/query-monitor/tags/3.20.2/output/html/request.php#L70\nhttps://plugins.trac.wordpress.org/changeset/3486705/query-monitor\nhttps://research.cleantalk.org/cve-2026-4267/",
    "id": "CVE-2026-4267",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "johnbillion Query Monitor 0",
    "sourceHref": "",
    "cvss": {
        "score": 7.2,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Query Monitor",
    "version": "0",
    "vendor": "johnbillion",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}